Find the perimeter. Use 3.14 for ? when needed.
A. 72 cm
B. 42 cm
C. 237 cm
D. 57 cm
Answer: D
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Provide an appropriate response.The time it takes to go a given distance depends on the rate.(a)Write a function t(r) for the time it takes if the distance is 400 miles and the rate is r miles per hour.(b)How much time is needed when the rate is x?(c)If the speed is increased by 10 miles per hour, how much less time is needed?(d)How much less time is needed per mile per hour increase?(e)If the speed is increased by h, how much less time is needed?(f)How much less time is needed per unit increase?
What will be an ideal response?
Find the LCM of the set of numbers.30, 40, 50
A. 300 B. 120 C. 597 D. 600
Solve the problem.What is the domain of the cosine function?
A. all real numbers, except odd multiples of 
(90°)
B. all real numbers
C. all real numbers from -1 to 1, inclusive
D. all real numbers, except integral multiples of ? (180°)
Graph the function.f(x) = int (x)
A. 
B. 
C. 
D. 